Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/12/2023
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 11/13/2023 21:59:32 -71.06, 25.13 90.97 11/13/2023 22:00:38 -70.96, 27.57 91.06 89.07 66
2 11/13/2023 22:50:00 70.09,-166.01 88.07 11/13/2023 22:50:19 70.10,-166.07 88.08 2.36 19
3 11/13/2023 23:40:42 -70.01, 1.42 92.00 11/13/2023 23:39:49 -69.99, 1.40 92.03 3.30 53
4 11/16/2023 14:16:10 -70.17, 142.33 91.18 11/16/2023 14:17:21 -70.16, 142.26 91.19 2.92 71
5 11/16/2023 15:06:54 70.05, -50.18 88.71 11/16/2023 15:06:48 70.05, -50.25 88.72 2.92 6
6 11/16/2023 15:57:33 -69.81, 117.50 91.52 11/16/2023 15:56:20 -69.83, 117.07 91.50 16.60 73
7 11/19/2023 06:33:04 -70.13,-101.85 90.57 11/19/2023 06:33:49 -70.14,-101.88 90.56 1.76 45
8 11/19/2023 07:23:48 70.01, 65.65 89.32 11/19/2023 07:23:16 70.03, 65.61 89.34 2.84 32
9 11/21/2023 21:59:29 70.87,-154.57 90.78 11/21/2023 22:00:37 70.74,-152.74 90.65 68.65 68
10 11/21/2023 22:49:58 -70.10, 13.97 90.00 11/21/2023 22:50:17 -70.09, 13.93 90.01 2.13 19
11 11/21/2023 23:40:42 69.98,-178.54 89.90 11/21/2023 23:39:44 69.98,-178.58 89.89 1.79 58
12 11/24/2023 14:16:09 70.17, -37.68 90.63 11/24/2023 14:17:13 70.16, -37.70 90.62 1.26 64
13 11/24/2023 15:06:51 -70.08, 129.78 89.46 11/24/2023 15:06:43 -70.06, 129.78 89.48 2.51 8
14 11/24/2023 15:57:27 69.54, -62.11 90.02 11/24/2023 15:56:16 69.61, -63.19 90.09 42.63 71

Figure of NPP and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/12/2023
SNOs_Map_NPP_LANDSAT-9_20231112.jpg

Download SNOs between NPP and LANDSAT-9 since TLE EPOCH: 11/12/2023 in txt file.

Historial Predications of SNOs between NPP and LANDSAT-9